James Wolk as Brad Cohen

Treat Williams as Norman Cohen

Dominic Scott Kay as Young Brad Cohen

Sarah Drew as Nancy Lazarus

Kathleen York as Diane

Joe Chrest as Jim Ovbey

Patricia Heaton as Ellen Cohen

Johnny Pacar as Jeff

Charles Henry Wyson as Young Jeff

Charlie Finn as Ron

Dianne Butler as Hilarie Straka

Helen Ingebritsen as Susan

Laura Whyte as Brenda

Mike Pniewski as Principal Myer

Michael H. Cole as Principal Fowler

Breanna Brooks as Molly

Chase McDaniel as Bully

Terry Dale Parks as Golfer

Ted Ferguson as Substitute School Teacher

Tommy Cresswell as Mr. Stivers

Jill Jacobson as Aged Aunt

Jenny Shakeshaft as Lisa

Katherine Shepler as Heather

Anna Rappaport as Amanda

Nicholas Stargel as Eli

Connor Hill as Henry

Karen Beyer as Mrs. Wilkins

Sandra Ellis Lafferty as Recruiter

Lori Beth Sikes as Deborah

Ric Reitz as Amanda's Father

Matt Borel as Test Administrator

Chan Ta Rivers as Maxine

Desiree Page as Student

Lanie Taylor as Simone

Mark Adam as Mike

Russell Hightower as Russ (uncredited)

Derek Wayne Johnson as Tourette's Group Leader (uncredited)

Patrick Kirton as Golfer (uncredited)

Rene Little as Fox (uncredited)

Cameron Ten Napel as Caroline (uncredited)

Steven E. Williams as School Supervisor / Background Driver (uncredited)